464 Mass. 566 - Appellant Montoya Brief - Mass Cases

focused on cribing street level drug transactions,
drug packing and the purposes of drug hi s. All
circumstantial evidence of wrong doing to sure, but
not compelling evidence concerning the nature of the
substance as being cocaine. See Commonwealth v. Rivas,
77 Mass. App. Ct. 210, 212 (2010) (foundation
questions asked of police officer only entitled him to
testify whether evidence of substance was consistent
with distribution and not as to he nature of the
substance) .
In sum, there can be no dispute that the
certificates were material and must have had a
power impact on the jury with respect to the issues
of the weight and the nature of the alleged
contraband, especially as there was no attempt to
dispute them. As has been already demonstrated, such
independent circumstantial dence that was not
tainted by the drug analysis certificates consisted
exclusively of the mode of packaging of the alleged
contraband in order to suggest drug aling. On the
other hand, the Commonwealth placed great reliance on
the drug analysis certificates at tria The drug
analysis certificate pertaining to the alleged
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